Hi Ron!

I am currently also Silver member.

Absolutely Yes, you may upgrade at the airport.

I flew CGK-DXB on 25th of january this year. Was bought Economy Saver ticket.

Using Manage My Booking there was no available seats for that leg. Also, i called to Emirates in Dubai, answer was the same.

However, i arrived at Jakarta airport 3 hours before departure and at the check-in desk was upgraded to Business. ^You should have only enough miles for that (for me was 42500 CGK-DXB)

Bear in mind that before arriving to the airport, i checked once againg availability of seats. No one was possible.

Good luck,

Max